Valve.



C. G. HARCOURT,

VALVE. APPLICATION FILED MAY 11, 1904v 2 SHEETS-SHEET 1.

Patented July 20, 1909.

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A TfOiY/VE rs 0. G. HAROOURT.

VALVE. APPLICATION FILED MAY 11. 1904.

Patented July 20.1909.

2 SHEETS-SHEET 2.

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tools or equipment.

Ul 'rAr CHARLES G. HARCOURT, OF BROOKL YN, NEW YORK.

VALVE Specification of Letters Patent.

Patented ma 20, 1909.

Applicatidn filed May 11, 190%. Serial No. 207391.

To all whom it may concern.-

Be it known that 1, CHARLES G. HAR- COURT, a citizen of the United States, residing in the city of Brooklyn, county of Kings,

5 and state of New York, have invented certain new and useful Improvements in Valves,

of which the following is a specification.

This invention appertains to certain novel and useful improvements in valves, and has l0 particular application, broadly considered,

to a device of the class described designed to be provided with a removable seat, and specifically relates to a valve having a removable seat ring actuated from the valve bonnet or hub.

In carrying out the present invention I have in contemplation so constructing m valve that the operating element thereol which is employed to actuate the seat ring,

is combined with and forms a part of the valve bonnet or hub, being preferably form ed integral therewith, thus reducingv the num ber of parts. Furthermore, ready and convenient access may be had to the operating 5 member at all times. Furthermore by forcing the seat ring and the hub apart or away from each other, as during the operation of unscrewing, it is possible to obtain a perfect steam tight joint both at the bearing of the seat ring and at the seat of the operating hub. By reversing the operation, or screwing the members together the seat ring may be withdrawn from its bearing in the diaphragm. Thus it will be noted that the meansfor seating and unseating the ring is the hub, an essential element of the valve. Should the seat stick or become jammed in the diaphragm, it may bewithdrawn by the hub without resorting to the use of special Furthermore my invention is applicable to all the types of valves commonlyin use, such as the globe, angle, cross or Yvalves, or the horizontal, angle, vertical or swing check valves and plug cocks. I also aim to provide a valve which will embody the desired features ol economy, simplicity, durability and convenience.

My invention consists in the construction, combination and arrangements of parts set forth in and falling within the scope of the appended claims.

In the accompanying drawings like char acters indicate like parts in all the figures.

Figure 1 is a v'ertical sectional view of a valve embodying my improvements, the

valve stem beingshown in elevation. Fig.

, 2 is a sectional view of an angle valve provided with my improvements. Mg. 3 1.. a horizontal sectional View taken lu'ough a valve on approximate 'y Y 1. Fig. 4 is a vertical sectionalv view, illustrating another means of securing the valve disk to the stem. Fig. 5 is a sectional view of another modified form ol'va di h and packing ring therefor;

Referring now to the accompa drawings in detail, the letter indicat 3 an ordinary valve body, having the interior diaphragm or wall B, and the tubular extension i lying at an angle to the body and communicating therewith, the exterior wall by the tubular extension and. the diap r agm B, is designed to be placed the valve seat-ring D, hereinbefore mentioned, said seat ring, comprising a tubular, approximately cylindrical member having an opening 8 formed in its bottom wall 9, the upper interior edge of such wall being beveled, as

at 10 to form a seatin surface for the valve disk 11', the part oi said disk designed to contact with the seat being correspondingly beveled, indicated at 12. The main body portion ofthe valve seat ring proper is cut away 011a )ertured longitudinally to form the vertical legs 12 which are adapted to act as retaining guides for the valve disk when the latter is vertically reciprocated,

that is to say, such legs contact with and hold the valve disk againsd lot 1 neve ment, thus insuring that ii it ill retained against accidental displacement. The disk is provided with a horizontal groove 13, which groove communicates with the edge of the valve disk so that the latter may he slipped on the head 1.4 of the valve stem 15. The inner wall of the valve seat ring, above the leg portions thereof, is threaded as at 16, to receive the'projection 17 oilthc valve hubor bonnet 18, the exterior surface circumferential flange 22,

t of the portion 17 having a plurality of circumferential threads designed to screw into the threads of the seat ring. It will further be noted that the seat ring is provided with a key orfeather 20, ada ted to norinally lie in a vertical groove or s 0t 21 formed in the wall of the portion C, so while free vertical movement is permitted to said seat it will be held against rotation. The hub or bonnet is adapted to revolve freely in a groove formed as hereinafter described and is provided above its threaded portion 17, with a somewhat similar to the flange 7 of the seat. The interior upper edge of the wall of the tubular body portion C is cut away to form a groove as at 23,

- rotatable position relative to the valve body tov permit the seating of this flange, andthe bonnet or hub is securely coupled and heldin through the medium of a union ring 24 whie 1 latter is threaded at 25 to interlock with corres onding threads 26 formed exteriorly an circumferentially of the member C, the flange 27 of said ring making a steam tight joint with the body and overlying the flange of the hub or bonnet, thus retaining the latter against displacement. The groove 23, formed for the reception of the flange of the hub, is of slightly reater width and depth than the flange itse f, so that the bonnet or hub may be freely rotated when desired to move the seat to and from its bearing without the flange of the bonnet striking or amming against adjacent parts. The bonnet or hub is provided with the usual threaded, central vertical bore 28 through which passes the threaded portion 29 of the stem 15, said stem extending entirely through the hub or bonnet and is hand wheel 30 at its free upper end, while the usual stufling box and packing gland shown at E, are provided for the top of the hub.

From the above description taken in con nection with the accompanying drawings the construction and ooeration of my improved valve will be read! y apparent. In assembling the valve the seat ring is first threaded all the way onto the projecting portion of the hub or bonnet by turning toward the left. These parts are then passed into the hub opening or tubular extension (I, care being taken to have the key or feather 20 move. into its keyway or slot. The coupling ring 24 is then applied and tightened in position and the hub ()I'-l)()]1l]0i/ is turned by means of a wrench or other suitable tool, until the flange or shoulder of such hub contacts with the under side of the coupling ring, such movement of the hub serving to force the valve seat vertically downward until a fluid tight joint is formed at the bearing surface of the diaphragm and simultaneously at. the mint of juncture of the top of the hub or .onnet and the under side of the eoupling provided with the ordinary.

ring. The gland, stuiiing box and hand bonnet or hu and by applying a wrench to the facets of the-latter and turning toward the right the seat will be withdrawn, the clearance space 40 ermitting of this, and the seat ring may then lie removed from the body with the hub. The seat can then be unscrewed from the bonnet or hub and a new one'substituted.

In I ig. 2 I have shown my improvement as applied to an angle valve, the valve disk and stem being omitted.

In l'ig. 5 another means is'shown for re taining the disk in position, and a composite packing ring is em loyed. In said Iig. 5, the numeral 80* int icates a com osite packing ring having a flange 31 inter ocking with the interiorly extending flange 32 of the seat ring extension, a retaining collar 33 of brass or other suitable material being threaded into the extension and bears against the top of the packing ring, clamping the "latter. The valve disk 34 is formed of two parts threaded together, said disk having an ex tension 35 to which a wrench may be applied to assist in the threading together of said members.

An important feature of my valve is the construction and correlation of the two elements, the seat ring proper and the hub or bonnet operatin the same, whereby one of said elements wi 1 be moved away from the other in the operation of unscrewing, the valve hub serving to all intents and purposes as a means for o crating the seat. The coupling ring is emp oyed on the hub opening to form a steam tight joint with the top of the valve body C, the removal of the coupling ring permitting the introduction of the hub or bonnet; threaded projecting portion which engages the seat, the flange of the hub forming a steam tight joint with the under side of the coupling ring. Now, it will be evident, that no matter what distance the under surface of the coupling ring is from the bearing surface of the seat'ring in the dia phragm, it is at all times possible to obtain steam tight joints simultaneously.

While I have herein shown and described my'preferred form of valve, I wish it to be understood that I do not limit myself to the. details of constructionset forth as modification and variation may be made without departing from the spirit of the invention or the scope of the claims.

llaving thus described my invention what I claim is 1. A valve comprising a body ortion having an opening therein, a remova le seat threaded on its interioiysurfacc, a rotatable hub member for recipl oeating the seat and having an extension exteriorly threaded designed to screw into the threaded portion of the seat, a shoulderon said hub, and a flange extending inward of the hub opening in the valve body, and designed to overlie the shoulder of the hub..

2. A valve, comprising a body portion having a groove formed therein, a movable seat portion having an inwardly extending.

seating surface for the valve disk, a'feather or key formed integral with said seat and adapted to lie in the groove to prevent the rotation of the seat, and a hub member threaded into said seat and adapted to impart a reciprocating movement to the latter.

3. A valve comprising a body portion, a movable seat portion having an inwardly extending bearingsurface for the valve disk, guide members integral with the seat portionfor retaining the valve disk in positiomand means engaging with said seat portion for imparting a reciprocating movement to the latter.

4. valve comprising a body portion, a removableseat'portion having a laterally projecting surface for the seating of the valve disk, a threaded hub member engaging with the interior face of the removable seat ortion, a shoulder formed on said hub mem er and adapted to lie in a groove formed in the valve body, and a coupling ring connected to the valve body and pro-' jecting above the shouldered portion of the hub, the construction being such that the hub may freely rotate in its groove.

5. A valve, comprising a body portion having a diaphragm adapted to receive a movable seat ring portion, said latter having an inward laterally extending-bearing surface for the seating of the valve disk, and a shouldered portion adapted to seat upon the diaphragm of the valve body, a hub member threaded into engagement with the removable seat ring portion, a shoulder formed on said hub designed to lie in a groove formed in the valve body, and a coupling member threaded into engagement with the valve body and having a flange extending over the shouldered portion of the hub.

6. in a valve a body having a diaphragm, a reciprocating seat formed with an inwardly extending bearing surface for the valve disk, and a hub member formed with a threaded projection extending into said seat and adapted when rotated to force the seat into and out of a fluid tight joint with its bearing.

7. A valve comprising a body portion, a

reciprocating seat port-ion therein having a bearing surface for the seating of the valve disk, a rotatable hub member having anextension threaded into engagement with the interior surface of the seat portion, such hub having an outwardly extending shoulder adapted .to he in a groove formed in the 'valve body, anda coupling ring threaded onto the valve body, and having an inwardly extending flange overlying the shoulder of the hub, the construction being such that the hub is free to rotate'to reciprocate the seat portion.

8. In a valve a movable seat portion, a rotatable hub member threaded into engagement with the seat portion, a valve stem extending through the hub member, a valve disk carried by the stem,and a coupling ring threaded onto the valve body and having an inwardly extending flange, the construction being such that the hub is free to rotate to reciprocate the seat portion. 1

y 9. A valve comprising a body portion, a removable seat portion having a seating surface for the valve disk, a hub member turning in the valve body and engaging with the seat ortion, the construction being such that botfi the hub and the seat portion may besimultaneously moved into and out of fluid-tight engagement with adjacent surfaces.

10. A valve comprising a body portion having a hub opening therein, a diaphragm in said body, a rotatable hub having a limited cndwise movement, a stem passing through the hub, a reciprocating seat operated by the rotation of the hub, a valve disk removably attached to the stem and retained in position on said stem by surfaces of the removable seat.

name to this specification in the presence of two witnesses. CHARLES G. lliillC'OUh 'l. Witnesses:

JAs. ll. GRIFFIN, V. E. Nionots.

in testimony whereof .l have signed my 

